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The molecule's function and chemical and physical properties
A molecule made up of two atoms will form a linear shape. The centers of the two atoms will be a straight line.
This is a tetrahedral structure; a typical example is methane, CH4.
The linear shape of beryllium chloride is due to the fact that it has a small central atom relative to the size of the chlorine atoms. This results in a small bond angle and a linear shape. The angular shape of water molecule is due to the fact that it has a large central atom relative to the size of the hydrogen atoms. This results in a large bond angle and an angular shape.
Without given a specific molecule there is not any way to determine the shape. Beryllium chloride consists of beryllium in the middle and a chlorine on each side, and is in the shape of a straight line.
Four atoms bound to a central atom with no lone pairs
Four atoms bound to a central atom with no lone pairs
Four atoms bound to a central atom with no lone pairs
A PH3 molecule has a triangular pyramidal shape. The central atom is the Phosphorus atom, which is connected to three Hydrogen atoms.
An AB2E2 molecule has two atoms and two lone pairs surrounding the central atom. This is the situation is water. The molecule will have a bent shape and the bond angle will probably as in water (105 0) be less than tetrahedral 109.5 0 )- due to lone pair - bond repulsion.
The molecule's function and chemical and physical properties
The shape of the molecule and The electronegativity differences of atoms in the molecule
The number of bonds the atoms in the molecule can form.
.. .. : F - B - F : .. .. :F:
The shape of the molecule and The electronegativity differences of atoms in the molecule
A molecule made up of two atoms will form a linear shape. The centers of the two atoms will be a straight line.
Triginal pyramidal. ~apex